/*
 * JBoss, Home of Professional Open Source
 * Copyright 2011, Red Hat, Inc. and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.mobicents.protocols.ss7.cap.service.circuitSwitchedCall;

import java.io.IOException;

import org.mobicents.protocols.asn.AsnException;
import org.mobicents.protocols.asn.AsnInputStream;
import org.mobicents.protocols.asn.AsnOutputStream;
import org.mobicents.protocols.asn.Tag;
import org.mobicents.protocols.ss7.cap.api.CAPException;
import org.mobicents.protocols.ss7.cap.api.CAPMessageType;
import org.mobicents.protocols.ss7.cap.api.CAPOperationCode;
import org.mobicents.protocols.ss7.cap.api.CAPParsingComponentException;
import org.mobicents.protocols.ss7.cap.api.CAPParsingComponentExceptionReason;
import org.mobicents.protocols.ss7.cap.api.service.circuitSwitchedCall.SpecializedResourceReportRequest;
import org.mobicents.protocols.ss7.tcap.asn.comp.Invoke;

/**
 * 
 * @author sergey vetyutnev
 * 
 */
public class SpecializedResourceReportRequestImpl extends CircuitSwitchedCallMessageImpl implements SpecializedResourceReportRequest {

	public static final int _ID_allAnnouncementsComplete = 50;
	public static final int _ID_firstAnnouncementStarted = 51;

	public static final String _PrimitiveName = "SpecializedResourceReportRequestIndication";

	private Long linkedId;
	private Invoke linkedInvoke;

	private boolean isAllAnnouncementsComplete;
	private boolean isFirstAnnouncementStarted;

	private boolean isCAPVersion4orLater;


	public SpecializedResourceReportRequestImpl(boolean isCAPVersion4orLater) {
		this.isCAPVersion4orLater = isCAPVersion4orLater;
	}

	public SpecializedResourceReportRequestImpl(boolean isAllAnnouncementsComplete, boolean isFirstAnnouncementStarted, boolean isCAPVersion4orLater) {
		this.isAllAnnouncementsComplete = isAllAnnouncementsComplete;
		this.isFirstAnnouncementStarted = isFirstAnnouncementStarted;
		this.isCAPVersion4orLater = isCAPVersion4orLater;
	}

	@Override
	public CAPMessageType getMessageType() {
		return CAPMessageType.specializedResourceReport_Request;
	}

	@Override
	public int getOperationCode() {
		return CAPOperationCode.specializedResourceReport;
	}

	@Override
	public Long getLinkedId() {
		return linkedId;
	}

	@Override
	public void setLinkedId(Long val) {
		linkedId = val;
	}

	@Override
	public Invoke getLinkedInvoke() {
		return linkedInvoke;
	}

	@Override
	public void setLinkedInvoke(Invoke val) {
		linkedInvoke = val;
	}

	@Override
	public boolean getAllAnnouncementsComplete() {
		return isAllAnnouncementsComplete;
	}

	@Override
	public boolean getFirstAnnouncementStarted() {
		return isFirstAnnouncementStarted;
	}

	@Override
	public int getTag() throws CAPException {
		if (this.isCAPVersion4orLater) {
			if (this.isAllAnnouncementsComplete)
				return _ID_allAnnouncementsComplete;
			else
				return _ID_firstAnnouncementStarted;
		} else {
			return Tag.NULL;
		}
	}

	@Override
	public int getTagClass() {
		if (this.isCAPVersion4orLater) {
			return Tag.CLASS_CONTEXT_SPECIFIC;
		} else {
			return Tag.CLASS_UNIVERSAL;
		}
	}

	@Override
	public boolean getIsPrimitive() {
		return true;
	}

	@Override
	public void decodeAll(AsnInputStream ansIS) throws CAPParsingComponentException {

		try {
			int length = ansIS.readLength();
			this._decode(ansIS, length);
		} catch (IOException e) {
			throw new CAPParsingComponentException("IOException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
					CAPParsingComponentExceptionReason.MistypedParameter);
		} catch (AsnException e) {
			throw new CAPParsingComponentException("AsnException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
					CAPParsingComponentExceptionReason.MistypedParameter);
		}
	}

	@Override
	public void decodeData(AsnInputStream ansIS, int length) throws CAPParsingComponentException {

		try {
			this._decode(ansIS, length);
		} catch (IOException e) {
			throw new CAPParsingComponentException("IOException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
					CAPParsingComponentExceptionReason.MistypedParameter);
		} catch (AsnException e) {
			throw new CAPParsingComponentException("AsnException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
					CAPParsingComponentExceptionReason.MistypedParameter);
		}
	}

	private void _decode(AsnInputStream ansIS, int length) throws CAPParsingComponentException, IOException, AsnException {

		this.isAllAnnouncementsComplete = false;
		this.isFirstAnnouncementStarted = false;
		
		if (this.isCAPVersion4orLater) {
			switch (ansIS.getTag()) {
			case _ID_allAnnouncementsComplete:
				this.isAllAnnouncementsComplete = true;
				break;
			case _ID_firstAnnouncementStarted:
				this.isFirstAnnouncementStarted = true;
				break;
			default:
				throw new CAPParsingComponentException("Error while decoding " + _PrimitiveName + ": bad tag for CAP V4 or later.",
						CAPParsingComponentExceptionReason.MistypedParameter);
			}
			
		} else {
			if (ansIS.getTagClass() != Tag.CLASS_UNIVERSAL)
				throw new CAPParsingComponentException("Error while decoding " + _PrimitiveName + ": bad tag class for CAP V2 or V3. It must must be UNIVERSAL",
						CAPParsingComponentExceptionReason.MistypedParameter);
		}

		ansIS.readNullData(length);
	}

	@Override
	public void encodeAll(AsnOutputStream asnOs) throws CAPException {
		this.encodeAll(asnOs, this.getTagClass(), this.getTag());
	}

	@Override
	public void encodeAll(AsnOutputStream asnOs, int tagClass, int tag) throws CAPException {

		try {
			asnOs.writeTag(tagClass, this.getIsPrimitive(), tag);
			int pos = asnOs.StartContentDefiniteLength();
			this.encodeData(asnOs);
			asnOs.FinalizeContent(pos);
		} catch (AsnException e) {
			throw new CAPException("AsnException when encoding " + _PrimitiveName + ": " + e.getMessage(), e);
		}
	}

	@Override
	public void encodeData(AsnOutputStream asnOs) throws CAPException {

		if (this.isCAPVersion4orLater) {
			if (this.isAllAnnouncementsComplete && this.isFirstAnnouncementStarted || !this.isAllAnnouncementsComplete && !this.isFirstAnnouncementStarted)
				throw new CAPException("Error while encoding " + _PrimitiveName + ": only one of choice must be selected when CAP V4 or later");
		}

		asnOs.writeNullData();
	}

	@Override
	public String toString() {

		StringBuilder sb = new StringBuilder();
		sb.append(_PrimitiveName);
		sb.append(" [");

		if (this.linkedId != null) {
			sb.append("linkedId=");
			sb.append(this.linkedId);
			sb.append(", ");
		}
		if (this.isAllAnnouncementsComplete) {
			sb.append("isAllAnnouncementsComplete");
		}
		if (this.isFirstAnnouncementStarted) {
			sb.append(" isFirstAnnouncementStarted");
		}

		sb.append("]");

		return sb.toString();
	}

}

